title: 2-Tosyl-2,3,3a,4,9,9a-hexa-hydro-1H-benzo[f]isoindol-1-one.
abstract: The title compound, C19H19NO3S, was produced by the self-reaction of N-cinnamyl-N-tosyl-acryl-amide in the presence of palladium(II) acetate via an intra-molecular C-C coupling reaction and C-H activation. There are two chiral C atoms in the mol-ecule, but the crystal is a racemic system due to a lack of chiral separation. The five-membered ring is twisted about the methyl-ene-methane bond, and the cyclo-hexa-1,4-diene ring has a boat conformation. The dihedral angle between the benzene rings is 88.27 (14)°, indicating an almost orthogonal relationship and an approximate L-shape for the mol-ecule. In the crystal, the presence of C-H⋯π inter-actions leads to inversion dimers.
authors.affiliation: School of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, People's Republic of China.
authors.forename: Min
authors.initials: M
authors.lastname: Wu
authors.forename: Yi-Min
authors.initials: YM
authors.lastname: Hu